What does the red text say? The only things I'm able to

>>17662231
"The pleasure of being cummed inside"

First part is もう少し大きく (just a little bigger), sou desu ka means something like "I see." As for the rest of it, I have no clue, that is some shitty handwriting. You can try asking here:
>>>/a/148439581

>>17662454
This anon is right.

Last part says だいじょうぶうです。(daijyobu desu), meaning that this grader is saying "[It'll be] alright."

>>17663048
(Cont.)
So they put it in hiragana for some reason.

>>17662231
something about big cock and cum